On 8/08/2013 11:20 AM, Ivan Gerasimov wrote:
Thanks Alan!

I've checked that and it turns out that GetStringUTFChars cannot return
NULL.
For allocation of the result string it calls AllocateHeap() with the
default EXIT_OOM fail strategy.
Thus, in case of being unable to allocate memory it simply stops VM.

Ouch! That is a hotspot bug. GetStringUTFChars is supposed to throw OutOfMemoryError if it has memory issues, not abort the VM!

I recommend that you check for NULL and/or a pending exception.

David

Sincerely yours,
Ivan

On 08.08.2013 5:05, Alan Bateman wrote:
(cc'ing net-dev).

The change looks okay to me. One suggestion (while you are there) is
to check the return from  GetStringUTFChars so that the name returns
when it fails with NULL.

-Alan.

On 07/08/2013 17:46, Ivan Gerasimov wrote:
Hello everybody!

Some methods of NetworkInterface class were reported to leak memory.
http://bugs.sun.com/view_bug.do?bug_id=JDK-8022584 (not yet available.)

Examples are isUp() and isLoopback().

Affected versions of jdk are 6, 7 and 8

Would you please review a simple fix that removes the unnecessary
allocation?
http://cr.openjdk.java.net/~igerasim/8022584/0/webrev/

Sincerely yours,
Ivan




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